- Sat Oct 12, 2019 1:26 pm #208583
I have my Sparkfun Single Channel Gateway working but I want to add an I2C OLED to it. So far I can't get it working. In the ESP-sc-gway sketch under the OLED.h tab the pin numbers for SDA and SCL need to be defined. The layout of the pins on the board schematic does not show the actual pin numbers. I can get the sketch to compile with SDA Pin 2 and SCL Pin 3 but the OLED doesn't come on. Can anyone tell me what the pin numbers should be ? Or how I can get the OLED to work ?